Grandstream ht-503 사용자 설명서
Grandstream Networks, Inc.
HT503 User Manual
Page 21 of 37
NAT TCP Timeout
NAT TCP idle timeout in seconds. Connection will be closed after preconfigured,
timeout if not refreshed.
Range: 0 - 3600
timeout if not refreshed.
Range: 0 - 3600
NAT UDP Timeout
NAT TCP idle timeout in seconds. Connection will be closed after preconfigured,
timeout if not refreshed.
Range: 0 – 3600, default is 300
timeout if not refreshed.
Range: 0 – 3600, default is 300
Uplink Bandwidth
The maximum uplink bandwidth permitted by the device. This function is disabled by
default. The total bandwidth can be set as: 128K, 256K, 512K, 1M, 4M or 10M.
For example if 64 is configured, there will be at least 64kbps reserved for VoIP. The
primary function of this setting is to reserve bandwidth for VoIP.
default. The total bandwidth can be set as: 128K, 256K, 512K, 1M, 4M or 10M.
For example if 64 is configured, there will be at least 64kbps reserved for VoIP. The
primary function of this setting is to reserve bandwidth for VoIP.
Downlink Bandwidth
The maximum downlink bandwidth permitted by the device. This function is disabled
by default. The total bandwidth can be set as: 128K, 256K, 512K, 1M, 4M or 10M.
For example if 128 is configured, there will be at least 128kbps reserved for VoIP. The
primary function of this setting is to reserve bandwidth for VoIP.
by default. The total bandwidth can be set as: 128K, 256K, 512K, 1M, 4M or 10M.
For example if 128 is configured, there will be at least 128kbps reserved for VoIP. The
primary function of this setting is to reserve bandwidth for VoIP.
Enable UPnP
When set to “Yes”, the HT503 acts as an UPnP gateway for your UPnP enabled
applications. UPnP = “Universal Plug and Play”
applications. UPnP = “Universal Plug and Play”
Reply to ICMP on WAN
Port
Port
When set to “Yes”, the HT503 responds to the PING command from other computers,
but is also made vulnerable to DOS attacks. Default is No.
but is also made vulnerable to DOS attacks. Default is No.
WAN Side HTTP/Telnet
Access
Access
When set to “Yes”, the user can access the web configuration pages through the WAN
port, instead of through the PC port. Warning: this configuration is less secure than the
default option. Default is No.
port, instead of through the PC port. Warning: this configuration is less secure than the
default option. Default is No.
Cloned WAN MAC
Address:
Address:
This allows the user to change/set a specific MAC address on the WAN interface.
Note: Set in Hex format
Note: Set in Hex format
LAN Subnet Mask
Sets the LAN subnet mask. Default value is 255.255.255.0
LAN DHCP Base IP:
Base IP for the LAN port, which functions as default gateway for its LAN. Default value
is 192.168.2.1
is 192.168.2.1
DHCP IP Lease Time
The length of time the IP address is assigned to the LAN clients. Value is set in units of
hours. Default value is 120 hrs (5 days).
hours. Default value is 120 hrs (5 days).
DMZ IP:
This function forwards all WAN IP traffic to a specific IP address if no matching port is
used by HT503 or in the defined port forwarding.
used by HT503 or in the defined port forwarding.
Port Forwarding:
Allows users to forward a matching (TCP/UDP) port to a specific LAN IP address with a
specific (TCP/UDP) port.
specific (TCP/UDP) port.
PSTN access code
The code to access the PSTN line (Maximum 5 digits). Default is “*00”. Any time user
can make PSTN calls from the analog phone connected to FXS port. By default, user
may pick up the phone, dial *00, and after obtaining PSTN line ( user will hear regular
dial tone) normal PSTN dialing is allowed.
can make PSTN calls from the analog phone connected to FXS port. By default, user
may pick up the phone, dial *00, and after obtaining PSTN line ( user will hear regular
dial tone) normal PSTN dialing is allowed.
PIN for PSTN calls
PIN code to bridge from VoIP to PSTN (Maximum 8 digits, No Default)
PIN for VoIP calls
PIN code to bridge from PSTN to VoIP (Maximum 8 digits, No Default)
Route Call to PSTN
If the dialed digits match one of the specified prefix here, outbound calls will be initiated
from PSTN line. This field is especially useful for emergency calls.
from PSTN line. This field is especially useful for emergency calls.
Unconditional Call
Forward to PSTN
Forward to PSTN
Calls are unconditionally forwarded to the specified PSTN phone number for all
incoming VoIP calls on FXO port.
incoming VoIP calls on FXO port.
Unconditional Call
Forward to VoIP
Forward to VoIP
Calls are unconditionally forwarded to the specified VoIP phone number for all
incoming PSTN calls. Each incoming call from the PSTN will first ring the analog phone
connected to FXS port. This call from the PSTN network will be forwarded to the
preconfigured VoIP extension if it is not answered. User can configure the number of
rings before forwarding calls to the VoIP extension. Configure number of rings using
the “number of rings” parameter located in the FXO Port Configuration page.
incoming PSTN calls. Each incoming call from the PSTN will first ring the analog phone
connected to FXS port. This call from the PSTN network will be forwarded to the
preconfigured VoIP extension if it is not answered. User can configure the number of
rings before forwarding calls to the VoIP extension. Configure number of rings using
the “number of rings” parameter located in the FXO Port Configuration page.
Firmware 1.0.0.9
Last Updated: 9/2007